Cam-adjusting mechanism for knitting-machines.



No. 879,720. PATENTED FEB. 18, 1908.

G. -L. BALLA'RD.

0AM ADJUSTING MECHANISM FOR KNITTING MACHINES. APPLIOATION FILED JUNE4,1907.

UNETED hiiilhilifidlhi scones LAwsoN BALLARD, or noemsrown,

PENNSYLVANIA Application filed ilune 4.1 1907. Serial lie. 377.32 3

simple construction which will enable the operator to adjust the campositively either inwardly or outwardly, end one which will indicate theposition of the com and the dees of adjustment which is being ei'lected.

also aim to provide an adjustment having means whereby the oam,may belocked seenrol in position. I aim to provide further a sci containedadjusting mechanism, that is to say, one which is embedded or containedwithin the limits of the dial cup so as to prevent projecting parts.

The invention consists in the features, combination and arrangement ofarts hereinafter described and particular y pointed out in the claims.

In the accompsn ing drawings Figure 1 is e plan view of a ial cap with te cams indicated in dotted lines end showing also my improvedadjustment. Fig. 2 is an end view of the dial cap ertly in section.Figs. 3, 3", and 4 are detei views. 7

In these drawings, 1, indicates a. stitch cam which of course isrepresentative of any suitable form of cam, or indeed any cam whichrequires adjustment. This cam is located on the underside of the dialcap 2 and it is pivoted to said cap at 3. The screw 4 is con- -nested toand extends upwardly from the free end of the cam 1 passing through anopening 5 in the lower portion of the dial cap and through an enlargedrecess 6 also formed in the dial cap and opening through the top In thisrecess,which is of circular:

thereof. form, a disk or block 7 is fitted so as to rotate therein. Thisdisk or block is provided with a notch or slot 8 extending radiallyinward from its edge, and in this notch or slot the upper portion of thescrew 4 extends, said screw projecting above the said disk or block andhaving a heed 9 bearing upon a washer 10 which in turn beers upo'n t eupper surthe erts mev locked in J .within the thickness of the seid copend heck from the edge thereot, thus ieeving the face of the dish 0 Thisblock is also provide with e her? 11 extend ing across its top di'etrics-lly;

in order to adjust the com the ciernpiogscrew 4 is loosened end then byinserting the end of the screw-driver into the heri 11 the disk or block's turned end the welis cit-he notch or slot 8 hear upon the of thescrew 4 and shift said screw and. thereby move inwardly or ou wardly themey be, the free end cl; nntii the some hssheenproperiy 9 J tee. poemsby turning the screw 4% so so to ti iten some and clamp the pests inposit: screw t, it wiil he olos wed is e s ositioned in relation t 6look and ei oreri otsry mo'venien oi the said block or disk effects theinward or out-wand movement or the scr w 4. in set. tion to the centerof the disi c pend cons. quently adjusts the corn. inwerdiy or outwerdlyas desired? The adjusting block, it Willi he noticed, E moved positivelyin. either one direction or the other and thus the corn may be adjustedby a. ositivo movement in either direction. In order to show the extentof this adjust mentend siso to indicate position in which the cem lies,I provide e. seeds 12 upon thecireuler adjusting block or dish and e E5zero merit is placed upon the upper face of the dial cap adjacent theed'usting block so that however slight the ad ustment of circular blockmay take place the scale wiii indicate the extent end position so of thecorn.

it will be seen. that m cisk lies with its upper sur upper face of thedial cap end it lies wholly said edge free from projections and permitting the use of a needle protector in close proximity to the needles andto the outer edge of the dial cop. I It will be seen thet the adjustmenteffected. by e device capable of transmitting force applied thereto witha ieversge action, thus adding to the else and accuracy with which theadjustment can he mode.

The screw 4 serves it two-fold purpose, in that it forms'thetransmitting. connection between the operating device, t. c. the rotaryblock, and the cam, and also the locking means for holding the parts inadjusted position.

1 do not limit myself to the form of the v rotary or pivotally movablemember, thou h I prefer the circular block or disk. T e rotary blockturns in the recess and hence no pivot screw or the like is needed forthis block.

I claim:

1 In combination, a support or carrier, a cam thereon, and means foradjusting the cam comprising a member to transmit force thereto, andmeans for locking the cam in position, said locking means forming theconnection between the member and the cam, substantially as described.

In combination, a support or carrier, a cam thereon and means foradjusting the cam, comprising the member movably supported on thecarrier or support, a screw connecting the same with the cam, said screwserving to transmit the movement of said member to the cam when loosenedand servto lock said member and cam a ainst movement when tightened,substantia ly as described.

device between said -member and said cam,'

substantially as described.

In combination, a support or carrier, a cam, a rotary disk or bloc ascrew extend- I ing from the block to the cam and loosely connected withone while fixed to the other, said screw servin to lock the parts in adjusted position, su stantially as described.

5. In combinat n, the support or carrier recessed on its upper side, akerfed rotary a rotary block in said recess, a screw assing through theblock into the cam, sai screw serving to lock the parts in adjustedposition and to transmit the movement of the rotary block to the cam.

7. In combination with a support or carrier, a cam, a kerfed deviceadapted to be turned by a screw driver, and a screw connecting saiddevice with the cam and adapted to lock the parts in adjusted position,substantially as described.

8. In combination with a sup ort or carrier, a cam, a disk or rotaryblocll and a locking screw connecting the same with the cam, said rotaryblock having a kerf by which it may be turned, substantially asdescribed.

In testimony whereof, I ailix my signature in presence of two witnesses.

GEORGE LAWSON BALLARD.

Witnesses:

CARRIE LANDIS, GEO. R. RALSTON.

